At the grand event, Markle will be among some of Harry's most prominent friends and family, including Prince William and Pippa's sister, the Duchess of Cambridge. Meghan has reported already met Kate and it went "really well," which is not surprising!

So, how is Markle prepping for Pippa's big day? With a trip to the spa, of course! And though the sight of Prince Harry's girlfriend is exciting for nearly every royal fan, it's Meghan's casual get-up that has Canadians buzzing.

Yup, that's the Toronto-based actress wearing a Toronto Blue Jays baseball hat just a day before the ceremony.